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Martin Storsjö a88db8b9a0 arm: vp9lpf: Implement the mix2_44 function with one single filter pass

For this case, with 8 inputs but only changing 4 of them, we can fit
all 16 input pixels into a q register, and still have enough temporary
registers for doing the loop filter.

The wd=8 filters would require too many temporary registers for
processing all 16 pixels at once though.

Before:                          Cortex A7      A8     A9     A53
vp9_loop_filter_mix2_v_44_16_neon:   289.7   256.2  237.5   181.2
After:
vp9_loop_filter_mix2_v_44_16_neon:   221.2   150.5  177.7   138.0

This is cherrypicked from libav commit
575e31e931e4178e9f1e24407503c9b4ec0ef9ba.

Signed-off-by: Martin Storsjö <martin@martin.st>

2017-03-11 13:14:51 +02:00

compat

compat/cuda: fix ulong size on cygwin

2017-03-01 12:08:34 +01:00

doc

libavfilter/avf_showwaves: make sqrt and cbrt scale option values available to showwavespic by name

2017-03-11 11:55:57 +01:00

libavcodec

arm: vp9lpf: Implement the mix2_44 function with one single filter pass

2017-03-11 13:14:51 +02:00

libavdevice

avdevice/alldevices: make avdevice_register_all thread safe

2017-03-07 20:34:44 +07:00

libavfilter

libavfilter/avf_showwaves: make sqrt and cbrt scale option values available to showwavespic by name

2017-03-11 11:55:57 +01:00

libavformat

avformat/matroskaenc: add support for Spherical Video elements

2017-03-09 13:57:03 -03:00

libavresample

Bump minor versions after 3.2 branchpoint to seperate release

2016-10-26 20:52:42 +02:00

libavutil

aarch64: Add parentheses around the offset parameter in movrel

2017-03-11 13:14:50 +02:00

libpostproc

Bump minor versions after 3.2 branchpoint to seperate release

2016-10-26 20:52:42 +02:00

libswresample

swresample/resample: do not allow odd filter_length

2017-03-09 13:09:14 +07:00

libswscale

lsws/slice: Move a misplaced const.

2017-03-08 00:33:21 +01:00

presets

…

tests

concatdec: pass AVFormatContext flags to sub demuxer

2017-03-09 16:24:00 +01:00

tools

tools/target_dec_fuzzer: Fix misaligned read

2017-02-24 14:12:13 +01:00

.gitattributes

fate: add SCC test

2017-01-27 17:06:42 +01:00

.gitignore

Merge commit '6641819feedb086ebba3d2be89b8d33980f367e1'

2016-06-26 15:43:05 +02:00

.travis.yml

Merge commit 'eda183287489b2c705843aa373a19c4e46fb2fec'

2015-11-22 17:12:24 +00:00

arch.mak

mips: rename mipsdspr1 to mipsdsp

2015-12-04 02:35:42 +01:00

Changelog

avcodec: add ClearVideo decoder

2017-03-02 11:39:54 +01:00

cmdutils_common_opts.h

cmdutils: add show_demuxers and show_muxers

2016-11-08 01:56:31 +01:00

cmdutils_opencl.c

cmdutils_opencl: fix resource_leak cid 1396852

2017-01-13 07:54:49 +08:00

cmdutils.c

cmdutils: remove duplicate windows.h include

2016-11-16 15:06:16 +01:00

cmdutils.h

cmdutils: add show_demuxers and show_muxers

2016-11-08 01:56:31 +01:00

common.mak

Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1'

2016-06-27 19:39:46 +02:00

configure

Revert "lavu/atomic: add support for the new memory model aware gcc built-ins"

2017-03-08 00:48:37 -03:00

CONTRIBUTING.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

COPYING.GPLv2

…

COPYING.GPLv3

…

COPYING.LGPLv2.1

…

COPYING.LGPLv3

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CREDITS

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ffmpeg_cuvid.c

ffmpeg_cuvid: adapt for recent filter graph initialization changes

2017-03-03 08:45:43 +01:00

ffmpeg_dxva2.c

Merge commit '18c506e9e6e8df8b1d496d093077b8240ea68c28'

2016-06-26 15:34:01 +02:00

ffmpeg_filter.c

ffmpeg: properly cleanup filter graph on init failure

2017-03-03 08:45:43 +01:00

ffmpeg_opt.c

ffmpeg: init filtergraphs only after we have a frame on each input

2017-03-03 08:45:43 +01:00

ffmpeg_qsv.c

ffmpeg: init filtergraphs only after we have a frame on each input

2017-03-03 08:45:43 +01:00

ffmpeg_vaapi.c

ffmpeg_vaapi: Always set hwaccel_ctx, so it gets properly cleaned up on error

2017-02-05 15:13:15 +00:00

ffmpeg_vdpau.c

Merge commit 'f72db3f2f3a8c83a4f5dede8fa03434b2bf676c6'

2016-06-26 15:29:39 +02:00

ffmpeg_videotoolbox.c

…

ffmpeg.c

ffmpeg: remove unnecessary hack for decoders which refuse to drain

2017-03-06 11:08:03 +01:00

ffmpeg.h

ffmpeg: delay processing of subtitles before filters are initialized

2017-03-03 08:45:43 +01:00

ffplay.c

ffplay: change keyboard volume control to logarithmic

2017-02-08 22:36:42 +01:00

ffprobe.c

ffprobe: add AVCodecContext help message into ffprobe

2017-03-11 11:12:23 +08:00

ffserver_config.c

ffserver_config: Check for failure to allocate FFServerIPAddressACL

2016-12-22 19:23:08 +01:00

ffserver_config.h

ffsrever: Make the status page bitexact if any stream is bitexact

2016-11-29 19:26:26 +01:00

ffserver.c

ffserver: local OOB write with custom program name

2017-01-08 03:50:56 +01:00

INSTALL.md

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library.mak

Merge commit 'c5fd4b50610f62cbb3baa4f4108139363128dea1'

2016-06-27 19:39:46 +02:00

LICENSE.md

lavfi/f_ebur128: relicense to LGPL

2016-11-27 20:46:20 +01:00

MAINTAINERS

MAINTAINERS: Add Rodger Combs to ffmpeg-security

2017-02-28 01:13:52 +01:00

Makefile

Makefile: Clean compat/atomics/pthread subdirectory.

2017-03-01 13:43:03 +01:00

README.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

RELEASE

RELEASE: Update for past 3.2 branch

2016-10-26 20:52:43 +02:00

version.sh

version.sh: Fix spurious rebuilds.

2016-03-10 09:53:10 +01:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

libavcodec provides implementation of a wider range of codecs.
libavformat implements streaming protocols, container formats and basic I/O access.
libavutil includes hashers, decompressors and miscellaneous utility functions.
libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
libavdevice provides an abstraction to access capture and playback devices.
libswresample implements audio mixing and resampling routines.
libswscale implements color conversion and scaling routines.

Tools

ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
ffplay is a minimalistic multimedia player.
ffprobe is a simple analysis tool to inspect multimedia content.
ffserver is a multimedia streaming server for live broadcasts.
Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.

Languages

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Assembly 7.5%

Makefile 1.3%

C++ 0.2%

Objective-C 0.1%

Other 0.1%